BMS-1166 是 PD-1/PD-L1 相互作用的有效抑制劑，其 IC₅₀ 值為 1.4 nM。BMS-1166 可拮抗 PD-1/PD-L1 免疫檢查點(diǎn)對 T 細(xì)胞活化的抑制作用。

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